Cahill will go two innings at the most, but more likely one; it’s about a 25-30 pitch limit for the starters this first time out. Clayton Mortensen will follow him.

Jason Jennings will throw a simulated game soon and still looks on track to get into a game next week some time.

Corey Wimberly will be out a few days with a calf strain, according to Bob Geren. I don’t get the impression Wimberly is all that high on the A’s radar for a big-league spot, but any time missed during the spring for a guy like that really hurts – they need to get noticed to have any shot. Also, I love Wimberly’s back flips and high socks; he’s fun to watch.

Today is the first broadcast of the spring on 860 AM and I know Ken Korach has completed the first manager’s show of the year. Ken Pries, the VP of broadcasting, said that 860 AM is sharing a new radio tower with another station that will really boost the signal during the day. The tower is near the San Mateo Bridge, on the Hayward side, and from sunup to sundown, it make 860 AM far more powerful.

At night, though, the signal will still be tough to get from portions of Berkeley and north of there. The FCC required many stations such as 860 AM to power down in the evening, so while day games should be crystal clear, the night games will still be iffy in the northern part of the East Bay.

Chris Townsend’s postgame show debuts today, too. I’d love to hear some feedback on it since I definitely won’t get it here – the new tower, which started transmitting 860 AM a week and a half ago, isn’t that good.